Are we talking about a reinstall after say a failed hard drive?
If so I would imagine that if you had done a backup of C: Drive on to a CD using PowerQuest's Drive Image. You could then do a clean install of the OS, and just copy back the saved image of C: Drive.
On the other hand if it is just a case of restoring your system after you have cocked up, then the following works fine.
I had a Compaq PC with a version of PQ's Drive Image incoperated into it. This automaticaly partitioned and automaticaly adjusted that partition as needed on your C:Drive. It then saved a compressed image of C:Drive on to that partition [you had to do this manually]. Which enabled you to revert back to the last saved image of C:Drive if you cocked up. Of course you had to remember to backed it up on a regulare basis, and the latest backup wiped the previous backup off.
But better than the last use explained for Drive Image, is Nortons newly aquired 'GoBack' [bought from Roxia just recently]
It automatically saves an image of your C: Drive and any partions therein. All you do is press the 'Goback' icon in the tool bar and it gives you options to revert back to a period in time, be it 10 mins, an hour,two hours, 6 hours, start of the day, yesterday, day before yesterday...get the picture. Great for sorting bad downloads or driver or program installs, or you mucking the registary up
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or deleting files you did not mean too.
But like the last explained usage of Drive Image, if the hard drive fails it cannot do a restore.
Hope this helps